import java.util.Scanner;

//已知一磅等于0.4535924千克，输入千克数，转换成磅数，并输出
public class homework7 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        double kg = sc.nextDouble();
        double lb = kg * 0.4535924;
        System.out.println(kg + "千克 = " + lb + "磅");
    }
}
